
Surf Forecasts:
Kohala Lighthouse surf forecast from 7 Sep 2026:
- Best quality surf: Monday 7 Sep, 11PM (local time) - 7ft (2.1m), 12s period, ENE swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 2PM (local time) - 10ft (3.0m), 12s period, ENE swell with 2,211 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 11PM (local time) - 7ft (2.1m), 12s period with ENE swell.
Best Forecast Surf Conditions for Kohala Lighthouse this week:
The surf forecast for Kohala Lighthouse over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 07) at 11PM. The primary swell is predicted to be 2.1m and 12s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Kohala Lighthouse in the next 16 days are 3.0m 12s and forecast to arrive on Monday (Sep 07) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 12s period and expected on Tuesday (Sep 08) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 7th Sep) | 7ft (2.1m) 12s |
| Best Surf | 11PM (Mon 7th Sep) | 7ft (2.1m) 12s |
| Most Powerful | 2PM (Mon 7th Sep) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Kohala Lighthouse over the next 16 days.
The Lowdown
Alright crew, Rusty here. Let’s break down what this forecast is serving up, state-side.
We’re in a bit of a lull to start. The first real chance to wet a line doesn’t show up until Tuesday, September 8th. So you’ve got a few days of flat, messy, onshore junk to sit through.
The big highlight, and really the only one worth gettin’ your wetsuit for, is Tuesday the 8th of September at Kohala Lighthouse. We’ve got a solid 6ft to 5ft swell from the ENE runnin’ with a sweet 11-10 second period. That’s a proper groundswell with some punch to it. The combined swell energy is (880) dropping to (759), which is a decent pulse of power. The selling point here, though, is the wind. We’re talkin’ glassy conditions in the morning with a light westerly before it goes light north-northeast. That’s about as clean as a wave gets. Water temp is 27°, which is totally average for this time of year – no surprise cold-water shocks. Just remember, this is an advanced reef break that breaks consistently, and it can get crowded. The swell direction from the east-northeast is a perfect match for this spot. Mark that Tuesday in red.
Wednesday the 9th the swell fades a touch, and the wind cranks back up from the east, turning the lineup into lumpy, bumpy chop. Not good.
Way off in the distance, there’s a whisper of something on Sunday, September 20th. More than a week away, so take it with a grain of salt. We could see some cleaner conditions with a cross-offshore breeze and waves in the 4ft to 5ft range from the east. The energy is low at (243) to (190), but if the wind holds, it could be a fun little session.
Monday, September 21st is similar, with a bit more energy (325 to 361) and cleaner winds. For a second-week look, that might be your best bet.
The bottom line? If you want the best of the bunch, Tuesday the 8th of September at Kohala Lighthouse is your window. Chase the glass. After that, we’re waitin’ on a possible late-weekend clean-up way down the line.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun night. Warm (max 28°C on Tue morning, min 26°C on Sun afternoon). Winds decreasing (strong winds from the E on Sun afternoon, calm by Tue afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Wed afternoon, min 24°C on Thu night). Mainly fresh winds. | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 9 | ENE 8 | ENE 6 | ENE 12 | ENE 7 | ENE 7 | ENE 7 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 9 | NNE 8 |
Wave Graph | ||||||||||||||||||||
2124 | 1324 | 2055 | 887 | 954 | 634 | 448 | 284 | 277 | 369 | 902 | 229 | 256 | 188 | 571 | 787 | 346 | 378 | 327 | 90 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-off | glassy | glassy | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross | cross | cross |
High Tide | 00:13AM0.38m | 1:12PM0.89m | 1:05AM0.45m | 1:48PM0.89m | 1:50AM0.53m | 2:20PM0.88m | 2:30AM0.61m | 2:48PM0.83m | 3:09AM0.67m | 3:15PM0.77m | 3:48AM0.72m | 3:38PM0.70m | 4:26AM0.74m | |||||||
Low Tide | 7:58PM0.26m | 5:43AM0.12m | 8:13PM0.22m | 6:42AM0.10m | 8:32PM0.19m | 7:32AM0.10m | 8:53PM0.16m | 8:18AM0.12m | 9:14PM0.13m | 9:02AM0.16m | 9:35PM0.11m | 9:44AM0.21m | 9:55PM0.11m | |||||||
— | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:29 | — | |
mm | — | 1 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 26 | 25 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 26 |
Feels °C | 24 | 24 | 24 | 28 | 30 | 33 | 33 | 31 | 26 | 26 | 25 | 23 | 24 | 22 | 25 | 25 | 24 | 26 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 13 | ENE 12 | SW 11 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 9 | E 13 | W 6 | WNW 10 | E 12 | SW 11 | ENE 11 | SW 10 | SW 10 | NNE 7 | WSW 9 | WSW 9 | NNE 8 |
132 | 1324 | 125 | 887 | 954 | 634 | 448 | 258 | 212 | 7 | 10 | 96 | 20 | 133 | 25 | 24 | 28 | 8 | 7 | 90 | |
Swell 2 Height (m) Direction Period (s) | N 10 | SW 14 | N 9 | SW 12 | WSW 13 | WSW 11 | WSW 10 | E 13 | W 7 | SW 7 | SW 13 | SW 16 | SW 18 | SW 11 | SSW 16 | SSW 15 | SW 9 | SSW 15 | SW 14 | ENE 9 |
8 | 281 | 6 | 172 | 669 | 412 | 301 | 284 | 24 | 2 | 7 | 10 | 12 | 18 | 25 | 22 | 13 | 21 | 7 | 86 | |
Swell 3 Height (m) Direction Period (s) | N 8 | N 10 | N 11 | N 9 | E 14 | E 14 | E 14 | W 9 | SW 14 | SW 13 | SW 7 | SW 12 | W 11 | SSW 16 | W 11 | W 11 | SW 15 | W 12 | W 12 | SW 8 |
5 | 17 | 2 | 6 | 138 | 246 | 311 | 95 | 7 | 7 | 2 | 6 | 3 | 26 | 2 | 2 | 35 | 3 | 3 | 3 | |
Wind waves Height (m) Direction Period (s) | ENE 12 | — | ENE 12 | ENE 6 | — | — | ESE 5 | E 5 | ENE 8 | ENE 6 | ENE 12 | ENE 7 | ENE 7 | ENE 7 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 9 | — |
2124 | — | 2055 | 244 | — | — | 35 | 34 | 277 | 369 | 902 | 229 | 256 | 188 | 571 | 787 | 346 | 378 | 327 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 25 | 25 | 25 | 25 | 0 | 0 | 0 | 0 | 76 | 78 | 73 | 25 | 25 | 25 | 25 | 73 | 73 | 73 | 71 | 69 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Kohala Lighthouse Surf forecast
The above surf forecast table for Kohala Lighthouse provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kohala Lighthouse can be found by selecting the local surf guide option on the grey menu. Our Kohala Lighthouse surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kohala Lighthouse) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Kohala Lighthouse may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Kohala Lighthouse is 87 km (54 miles) from Kihei. If you plan a vacation in Big Island, look for hotels and other accommodation in Kihei. Kihei has rooms for a wide range of budgets as well as car hire and transport links.










